### Install cargo-fuzz

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/fuzz/README.md

Installs the cargo-fuzz tool, which is required for setting up and running fuzzing targets.

```sh
cargo install --locked cargo-fuzz
```

--------------------------------

### Custom SSH Agent Implementation

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/README.md

Demonstrates how to implement a custom SSH agent by defining a struct that derives `Session` and handles `request_identities` and `sign` methods. It shows how to set up a listener for Unix domain sockets or named pipes and start the agent.

```rust
use tokio::net::UnixListener as Listener;
use ssh_agent_lib::error::AgentError;
use ssh_agent_lib::agent::{Session, listen};
use ssh_agent_lib::proto::{Identity, SignRequest};
use ssh_key::{Algorithm, Signature};

#[derive(Default, Clone)]
struct MyAgent;

#[ssh_agent_lib::async_trait]
impl Session for MyAgent {
    async fn request_identities(&mut self) -> Result<Vec<Identity>, AgentError> {
        Ok(vec![ /* public keys that this agent knows of */ ])
    }

    async fn sign(&mut self, request: SignRequest) -> Result<Signature, AgentError> {
        // get the signature by signing `request.data`
        let signature = vec![];
        Ok(Signature::new(
             Algorithm::new("algorithm").map_err(AgentError::other)?,
             signature,
        ).map_err(AgentError::other)?)
    }
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    #[cfg(not(windows))]
    let socket = "ssh-agent.sock";
    #[cfg(windows)]
    let socket = r"\\.\pipe\agent";

    let _ = std::fs::remove_file(socket); // remove the socket if exists

    listen(Listener::bind(socket)?, MyAgent::default()).await?;
    Ok(())
}
```

--------------------------------

### Sign Off Multiple Commits with Rebase

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/CONTRIBUTING.md

Applies the 'Signed-off-by' line to a series of commits starting from the current branch's divergence point with 'main'.

```git
git rebase --signoff main
```

--------------------------------

### Connecting to an SSH Agent (Client)

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/README.md

Shows how to connect to an existing SSH agent using the `ssh-agent-lib` client. It demonstrates how to establish a connection via a file path (Unix) or a named pipe (Windows) and retrieve the identities known by the agent.

```rust
use service_binding::Binding;
use ssh_agent_lib::client::connect;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    #[cfg(unix)]
    let mut client = 
        connect(Binding::FilePath(std::env::var("SSH_AUTH_SOCK")?).try_into()?)
    
    #[cfg(windows)]
    let mut client = 
        connect(Binding::NamedPipe(std::env::var("SSH_AUTH_SOCK")?).try_into()?)

    eprintln!(
        "Identities that this agent knows of: {:#?}",
        client.request_identities().await?
    );

    Ok(())
}
```

--------------------------------

### Set Git Hooks Path

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/CONTRIBUTING.md

Configures Git to use the project's custom hooks for pre-commit checks.

```sh
git config core.hooksPath scripts/hooks/
```

--------------------------------

### Run Fuzzing Target

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/fuzz/README.md

Executes a specific fuzzing target, such as 'message_decode'. This command requires a nightly version of the Rust toolchain.

```sh
cargo +nightly fuzz run message_decode
```

--------------------------------

### Fuzzing Options

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/fuzz/README.md

Provides options to modify the behavior of the `cargo fuzz run` command, including increasing parallelism and disabling sanitizers.

```sh
# Increase parallelism
--jobs N

# Disable sanitizer (ssh-agent-lib does not use unsafe blocks)
--sanitizer none
```

--------------------------------

### SSH Agent Usage via Environment Variable

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/README.md

Illustrates how to configure an OpenSSH client to use a custom SSH agent by setting the `SSH_AUTH_SOCK` environment variable. This allows transparent use of the custom agent for SSH connections.

```sh
SSH_AUTH_SOCK=ssh-agent.sock ssh user@example.com
```

```sh
SSH_AUTH_SOCK=\\.\pipe\agent ssh user@example.com
```

--------------------------------

### Sign Commit Automatically

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/CONTRIBUTING.md

Appends a 'Signed-off-by' line to the commit message using Git's built-in functionality.

```git
git commit --signoff
```

--------------------------------

### Amend Last Commit with Signoff

Source: https://github.com/wiktor-k/ssh-agent-lib/blob/main/CONTRIBUTING.md

Adds a 'Signed-off-by' line to the most recent commit.

```git
git commit --amend --signoff
```

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